PRELIMINARY
CM3015
(Note 1)
PACKAGE / PINOUT DIAGRAM
TOP VIEW
TOP VIEW
TOP VIEW
TOP VIEW
V
1
2
3
5
V
V
1
2
3
6
5
4
V
OUT
IN
OUT IN
EN
VIN
1
2
3
4
8
7
6
5
GND
GND
GND
EN
VIN
1
2
3
4
8
7
6
5
GND
GND
GND
GND
GND
EN
GND
SENSE
BYP
VOUT
BYP
VOUT
GND VSENSE
4
BYP EN
5-PIN SOT23
CM3015-12ST,-15ST
-18ST,-25ST,-30ST,-33ST
8-PIN MSOP
CM3015-00MA
8-PIN MSOP
CM3015-12MA,-15MA
-18MA,-25MA,-30MA,-33MA
6-PIN SOT23
CM3015-00ST
,
,
Notes:
1) These drawings are not to scale.
2) See Ordering Information section for part marking details.
PIN DESCRIPTIONS
SOT23-5
PIN(S)
SOT23-6
PIN(S)
MSOP-8
PIN(S)
NAME
DESCRIPTION
1
1
2
VIN
VIN is the input power source for the regulator. If this input is within a few
inches of the main supply filter, a capacitor may not be necessary. Other-
wise, an input filter capacitor of about 1-10µF will ensure adequate filter-
ing.
2
3
2
3
5-8
1
GND
EN
The negative reference for all voltages.
Enable input. When this input is taken low (< 0.4V), the regulator is dis-
abled. In this state, the supply current will drop to near zero.
4
4
5
4
4
BYP
Reference Bypass Pin. Connect to an external capacitor for noise reduc-
tion. A 10nF-100nF size ceramic capacitor is recommended.
VSENSE This pin sets VOUT with an external divider: VOUT = VSENSE(1+ R1/R2).
−
R1 is the upper resistor, like the internal divider shown on the block dia-
gram on page 1.
5
6
3
VOUT
VOUT is the output voltage used to power the load. An output capacitor
may not be required for stability, but its use can improve transient
response, noise performance and power supply ripple rejection for fre-
quencies over ~100kHz (see note 1).
Note 1: Tantalum, electrolytic or low cost ceramic capacitors may be used.
© 2004 California Micro Devices Corp. All rights reserved.
2
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
●
Tel: 408.263.3214
●
Fax: 408.263.7846
●
www.calmicro.com
09/14/04
CALMIRCO [ CALIFORNIA MICRO DEVICES CORP ]
